Juice extractor



Sept. 11, 1928. v 1,683,850

0.,1. ULRICH JUICE EXFI'RACTOR Original Filed March 5, 1925 Patented Sept. 11, 1928.

CARL J. ULRICH, or minnnaroms, mmnr so'ra.

JUICE EXTRACTOR.

Application filed liaarch 5, 1925, Serial $0. 13,360. Benewetllul y. l6, 1927.

My present invention has for its object toprovide an extremely simple and highly eflicient device for extracting the juice from citrous fruit, such as lemons, oranges, grape fruit and the like, and to this endconsists of the novel devices and combinations of de vices hereinafter described and defined in the claim. a

In the accompanyingdrawings, which illustratc the invention, like characters indicatel'ike p 'irtsthroughout the several views.

Referring to the drawings:

Fig. 1 ayview partly in side eleyation and )artly in central vertical section showi llg t e jniceextractiug device clamped to a fragment of a table top;

2 is a face view of thereamer shown in Fig. 1; and r Figs. 3 and {l are face views of ofdifl'erent sizes. i

"'lh e numeral 5 indicates a substantially conical reamcr which, at the er lges of-its blades .6, is substantially semi-spherical. The reamcr blades 6 are extended forward of the apex of the body of the reamcr 5 to relatively sharp points 7 which are circumferentially and radially spaced in respect to the axis of said reamcr. Formed in the body of the reamcr 5 at the apex thereof, in- 30 ward of the radially spaced blade points 7, is a cylindrical recess or cavity 8 axially aligned with the reamcr A trunnion seat- 9 extends completely through the body of the reamcr from its back to the bottom of the recess 8 and is in the form of an axially located bore.

It may be here stated that the large reamer 5 shown in Fig. 2 i designed for use in extracting juice from citrous fruit, such as a grapefruit. The intermediate reamers sized reamer shown in Fig. 3 is designed for extracting juice from citrous fruit. such as oranges; and the small reamcr shown in Fig. 4 for small citrous fruit, such as lemons. The reamer shown in Fig. 1 is the same reamcr as that shown in Fig. 2 only on a smaller scale, and it will be noted that its recess 8 has a diameter considerably larger than its trunnion seat 9. The recesses 8 in the .reamers shown in Figs. 3 and 4, as shown, are of the same diameters as the trunnion seats 9. 7

At the base of the reamcr 5 is a closed-disclike face 10 having a diameter considerably greater than the base of the reamcr 5 which bears thcreagainst. Said face plate 10 is provided with an axially projecting trunnion ll which extends looscly into the trunnion seat 9 and terminatesatthe bottom ofthe. recess 8. An eccentrically located dowel pin "12 on the face plate 10v extends into a bore 13 in the base of the reamcr ,5 and holds said reamcr from turning on the trunnion 11 ()bviously, the reamcr 5 may be applied or the reamcr for rotation around a horizontal axis. This shaft 14.- is 'ournaled in a relatively long bearing15 ormed with the upper end of av standard 16 and projects laterally therefrom. Qn' the rear end of the shaft 14 is secured a removable. liand craiik '17'by which the reamcr imay befrotated.

Formed with thelower endntthe standard 16 .is'a clamp 18 for securing the device to a tableto iX or other suitable su port.

For collecting juice removed from citrous fruit by the reamcr 5 and directing the same into a tumbler or other receptacle, not shown, there is located directly under said reamcr 5 a pan-like receptacle 19 having a funnellike bottom 20. This receptacle 19 is de tachably secured to the standard 16 by an upstanding prong 21 on said standard and arranged to enter aslot-like seat 22 on said receptacle. The receptacle 19 can be detached from the standard 16 by a lifting movement to withdraw the prong 21 from its seat 22. V

For removing the seeds and pulp from the juice extracted from the citrous fruit, there is removably held in the bottom of the receptacle 19, a strainer 23 having a hand piece 24. by which it can be lifted from said receptacle.

As far as the operation of the reamcr 5 is concerned, the same may be mounted in either a vertical or horizontal position and either held stationary or mounted for rotation. In case the reamer 5 is held stationary, it will be necessary to turn and press citrous fruit thereagainst to extract its juice, but when the reamcr 5 is rotated, either by hand or power, the citrous fruit would be held from turning and only pressed against the reamcr.

To extract the 'uice from a citrous fruit by means of the (evice shown,the same is first cut in half and the halves thereof pressed, one at a time, against the reamer 5 at the apex thereof, while the same is rotated by the hand crank 17. As the citrous fruit is fed to the reamer 5, the rotating blades 6 thereof press the juice therefrom. The face plate 10 not only altords a stop for the rind of a half of a citrous fruit as it is pressed out of the reanier 5, but it directs the juice extracted therefrom into the receptacle 19.

The forwardly projecting ends or points 7 of the blades 6 and the cavity 8 in the reanier 5 perform the following important functions: In pressing the cut surface of a eitrous fruit onto the reainer 5, the points 7 will enter said surface at circumferentially spaced points outward of the core of the fruit and thereby center the recess 8 to receive said core and also position the longitudinal edges of the blades parallel to the inside of the rind. Under the rotation of the reainer 5, the blade points 7 break or tear the webs radiating from the core of the fruit to the rind thereof, and at the same time break up the pulp with the assistance of the blades 6 and thereby greatly facilitate the extraction of the fruit juice. By providing the reamer 5 with the recess 8 the core of a citrous fruit will be held therein so that the edges of the blades 6, which extend parallel to the inner surface of the rind, will press the pulp against the inside of the rind throughout their entire length, and thereby extract all of the juice from the fruit. If it was not for the recess 8, the apex of the reainer 5 would engage the core of the fruit and thereby be thrown oil center; and furthermore this core would act as a stop, when pressed against the inside of the rind by the reamer 5, and thereby hold portions of the blades 6 out of engagement with the inside of the rind and thereliy wouldv not extract all of the juice.

As the face plate 10, as previously stated, is closed, or in other words iluperforated, not any of the juice Will work into the hearing 15. The construction and arrangement. of the several parts of the device are such that they may be very easily separated and cleansed and then reassembled.

The above described invention has, in actual commercial usage, proven highly eflicient for the purpose had in view.

lVhat I claim is:

A conical reamer for extracting juices from citrous fruit and having an axial trunnion seat extending completely therethrough, said lOtUTlGI having at its base a separate face plate provided with a trunnion extending into said trunnion seat, said reamcr being held against rotation in respect to the face plate.

In testimony whereof I affix my signature.

CARL J. ULRICH. 

